E-Flora BC: Electronic Atlas of the Flora of British Columbia

Mollugo verticillata L.
common carpetweed (green carpetweed)
Molluginaceae (Carpet-weed family)

Introduction to Vascular Plants

© Curtis Bjork  Email the photographer   (Photo ID #15962)

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Distribution of Mollugo verticillata
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Species Information

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Annual herb from a slender taproot; stems prostrate, mat-forming, branched with each branch forked unequally, glabrous or slightly glandular-hairy, up to 20-50 cm long.
Basal leaves lacking; stem leaves whorled, 4-10 per whorl, linear-oblanceolate to egg-shaped, 5-30 mm long, 1-3 mm wide, narrowed to short stalks.
Inflorescence of axillary clusters of solitary flowers on slender stalks 3-10 mm long; petals lacking; sepals greenish-white, white on the inner surface, 3-veined, oblong, 1.5-2.5 mm long.
Capsules, egg-shaped, 3-4 mm long; seeds 0.5 mm long with narrow longitudinal ridges, dark reddish-brown, shiny.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Wet to mesic roadsides, fields and ditches in the lowland and montane zones; rare in the lower Fraser Valley and SC BC; E to NB and NS and S to TX, CA and MX; possibly native only to tropical America.

Source: The Illustrated Flora of British Columbia


Ecological Framework for Mollugo verticillata

The table below shows the species-specific information calculated from
original data (BEC database) provided by the BC Ministry of Forests and Range.
(Updated August, 2013)

Site Information
Value / Class




Elevation (metres) 1440 1440 1440
Slope Gradient (%) 1 1 1
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
6 6 6
Modal Nutrient Regime
Number of field plots
 species was recorded in:
Modal BEC Zone Class
All BEC Zones (# of stations/zone) species was recorded in: MS(1)


The climate type for this species, as reported in the: "British Columbia plant species codes and selected attributes. Version 6 Database" (Meidinger et al. 2008), is not evaluated, unknown or variable.

Synonyms and Alternate Names

Mollugo berteriana Ser.

Taxonomic and Nomenclatural Links

Additional Photo Sources

General References